#include <stdio.h>
#include <string.h>

typedef unsigned char *byte_pointer;

void show_bytes(byte_pointer start, int len)
{
	int i;
	for (i = 0; i < len; i++) {
		printf(" %.2x", start[i]);
	}
	printf("\n");
}

void show_int(int x)
{
	show_bytes((byte_pointer)&x, sizeof(int));
}

void show_float(float x)
{
	show_bytes((byte_pointer)&x, sizeof(float));
}

void show_pointer(void *x)
{
	show_bytes((byte_pointer)&x, sizeof(void *));
}

void test_show_bytes(int val)
{
	int ival = val;
	float fval = (float)val;
	int *pval = &ival;

	show_int(ival);
	show_float(fval);
	show_pointer(pval);
}

int main(void)
{
	//test_show_bytes(12345);
	/*
	int val = 0x12345678;
	byte_pointer valp = (byte_pointer)&val;
	show_bytes(valp, 1);
	show_bytes(valp, 2);
	show_bytes(valp, 3);
	*/
	int a = 0x41;
	int b = ~a;
	show_int(a);
	show_int(b);

	return 0;
}
